Do the code in Java Language ProblemWrite a class named Person that has attributes for name, age, and occupation.These attributes should be private. Create getters and setters for each attributefollowing Java conventions.Expected Output• Declare the instance new Person("Citra Curie", 16, "student")• The method getName() returns Citra Curie• The method setName("Rowan Faraday") changes the name attribute to "RowanFaraday"• The method getage() returns 16• The method setAge(18) changes the age attribute to 18• The method getOccupation() returns student• The method setőccupation("plumber") changes the occupation attribute to"plumber"Testing Your CodeUse the button below to test your code before submitting it for evaluation.

We have to create a class named Person. With attributes name age occupation It should be private.…

Answered: Problem Write a class named Person that…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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(1) Extend the ItemToPurchase class to contain a new attribute. item_description (string) - Set to "none" in default constructor Implement the following method for the ItemToPurchase class. print_item_description() - Prints item_description attribute for an ItemToPurchase object. Has an ItemToPurchase parameter. Ex. of print_item_description() output: Bottled Water: Deer Park, 12 oz. (2) Build the ShoppingCart class with the following data attributes and related methods. Note: Some can be method stubs (empty methods) initially, to be completed in later steps. Parameterized constructor which takes the customer name and date as parameters Attributes customer_name (string) - Initialized in default constructor to "none" current_date (string) - Initialized in default constructor to "January 1, 2016" cart_items (list) Methods add_item() Adds an item to cart_items list. Has parameter ItemToPurchase. Does not return anything. remove_item() Removes item from cart_items list.…
Software Requirements: • Latest version of NetBeans IDE • Java Development Kit (JDK) 8 Procedure: 1. our progras from rhFactor non-static and private. Remove the constructor with two (2) parameters. 2o upply uncapsutation Make bloodType and 2. The names of the public setter and getter methods should be: • setBloodType() • setRhFactor() getBlood Type() getRhFactor() 3. Use the setter methods to accept user input. 4. Display the values by calling the getter methods. Sample Output: Enter blood type of patient: Enter the Rhesus factor (+ or -): O+ is added to the blood bank. Enter blood type of patient: B Enter the Rhesus factor (+ or -): B- is added to the blood bank.
1 - Student class Make a class student (in student.py) that stores the following information for a student: Name (name) Student number (student_nr) Points per assignment (points_per_assignment) Exam grade (exam_grade) a) Behind each point of information is the name of the parameter to the initializer method. Store this information from the parameters in the object attributes with the same name. b) Add a method course_points() which returns the number of course points the student has gotten. Example: mary = Student("Mary", 15789613, [10, 9, 8, 10, 9, 10], 9)print(mary.course_points()) > 121 The calculation of the course points is explained in the course overview, course setup slides (Links to an external site.) and the first lectureLinks to an external site.. c) Add a method grade() which returns a the final grade of the student, rounded to nearest half (upwards, 6.75 -> 7). As per regulations, a 5.5 becomes a 6. If the student did not pass both the assignments (>= 95…
Point out errors in the following codes and correct them publicclass CheckingAccount { // Create attributes account Num, Balance privateint accountNum; // Account Number privatedouble balance; // Account balance // Constructor public void CheckingAccount(int aNum, double balance) { // Call setters to initialize attribute values setAccountNumber (aNum); setBalance; } // Setters public void setAccountNumber(int aNum) { if (accountNum >= 100) { accountNum = aNum; } else {System.out.println("This account number is invalid (Account number must be at least 3 digits)!"); this.accountNum = 100; // assign a default value } } public void setBalance(double aBalance) { // make sure the value is positive if (aBalance > 0) { aBalance = balance; } else { System.out.println("This balance value is invalid (input must be positive)!"); aBalance = 0; // assign a default value } } // Getters publicvoid getAccountNumber() { return accountNum; } public void getBalance() { return balance; }…
Object Oriented Programming: 213COMP, 214COMP (Feb-2022) Assignment- I [10 marks] Academic honesty: O Only pdf file accepted & student ID, will be your upload file. O Student who submit copied work will obtain a mark of zero. O Late work or attach file by email message not allowed. Q1: Write the signature for a method that has one parameter of type String, and does not return a value. Q2: Write the signature for a method that has two parameters, both of type Student, and returns an int value. Q3: Write the constructor's headers of the followings? new Student (202101156, “Ahmed"); new Address(51, "jazan university","CS&IT" ); new Grade(true, 505235600, 4.5); Q4: a) Write a class Student that define the following information: name, stid , age. b) Explain a mutators (setters) and accessors(getters) methods for each attributes(fields). c) Add three constructors: • with empty constructor. one parameter constructor (name of student) two parameters constructor (name and stid) d) Create two…
Python Define the Student class that has two attributes: name and gpa Implement the following instance methods: A constructor that sets name to "Defualt name"(What ever you want to give) and gpa to 1.0set_name(self, name) - set student's name to parameter nameget_name(self) - return student's nameset_gpa(self, gpa) - set student's gpa to parameter gpaget_gpa(self) - return student's gpaEx. If a new Student object is created, the default output is: Default name/1.0Ex. If the student's name is set to "Frank" and the gpa is set to 3.7, the output becomes: Frank/3.7
Design and implement a class called Car that contains instance data that represents the company, price, model, and year of the car. Define the Car constructor to initialize these values. Include getter and setter methods for all instance data, and a toString method that returns a one-line description of the car. Create a driver class called CarTest, whose main method instantiates array of Car objects and write the following methods: 1) Methods that receives an array of cars and a string called co and returns an array that contains cars whose company equal to co. 2) A Method called getTopByCompany that receives an array of Cars and then returns an array of cars containing the cars that have the highest price compared with cars from the same company.
Please follow the steps to complete JAVA PROGRAM Create a class, EmployeeException, that has the following attributes: name: String SSN: String Salary: double The methods required in this class are: A constructor with no arguments that sets the attributes at default values A constructor that passes values for all attributes Accessor, mutator, display method for each attribute. An example of a display method for an attribute is writeOutName(): void, in which you just display the name:System.out.println("Employee Name: " + name); An equals method that has an object of type Employee as argument, and returns true if two employees have the same name, salary, and SSN. Write a driver program for the Employee class that uses an array that can hold up to 100 employees (the array will be of EmployeeException type). However, the user should be free to enter as many employees as needed. The driver class should use two exception classes to signal the user that the SSN entered is not correct.…
public class date { private int day; // from 1 to 31 private int month; // from 1 to 12 private int year; // from 2000 upwards public void advance (); // move to next day }; Implement a constructor that initializes new objects of date class to be set to the 1st of January 2000. Implement setters for day, month, and year. Implement the advance method, which moves to the next day, ensuring that all data members are updated appropriately.
Design a LandTract class that has two fields (i.e. instance variables): one for the tract’s length(a double), and one for the width (a double). The class should have:  a constructor that accepts arguments for the two fields  a method that returns the tract’s area(i.e. length * width)  an equals method that accepts a LandTract object as an argument. If the argument object holds the same data (i.e. length and width) as the calling object, this method should return true. Otherwise, it should return false.  a toString method (that returns a String representation of the tract’s length, width, and area). Demonstrate the class in a program by creating an array of three LandTract objects initialized with user input. Then, print the info of the LandTract objects stored in the array by invoking the toString method (implicitly or explicity). Also, use the equals method to compare at least two LandTract objects and print wether they are of equal size or not. Sample Output:…
Design and implement a class called Car that contains instance data that represents the company, price, model, and year of the car. Define the Car constructor to initialize these values. Include getter and setter methods for all instance data, and a toString method that returns a one-line description of the car. Create a driver class called CarTest, whose main method instantiates array of Car objects and write the following methods: 1) Method “printInfo” that receives an array of cars and returns all information about all cars. 2) A Method called getTopByCompany that receives an array of Cars and then returns an array of cars containing the cars that have the highest price compared with cars from the same company.
CSC 1302: PRINCIPLES OF COMPUTER SCIENCE II Lab 6 How to Submit Please submit your answers to the lab instructor once you have completed. Failure to submit will result in a ZERO FOR THIS LAB. NO EXCEPTIONS. The class diagram with four classes Student, Graduate, Undergraduate, and Exchange is given. Write the classes as described in the class diagram. The fields and methods for each class is given below. Student Exchange Graduate Undergraduate Student: Fields: major (String) gpa (double) creditHours (int) Methods: getGpa: returns gpa getYear: returns “freshman”, “sophomore”, “junior” or “senior” as determined by earned credit hours: Freshman: Less than 32 credit hours Sophomore: At least 32 credit hours but less than 64 credit hours Junior: At least credit hours 64 but less than 96 credit hours Senior: At least 96 credit hours Graduate:…

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